Clutchless transmission permitted in S/S

Travis Miller · 02-08-2010, 05:35 PM

As of today's date 2/08/2010, posted in NHRA.com 2010 rule amendments, clutchless transmissions are permitted in S/S. This rule is in effect for the Winternationals.

For those interested, there is NO rule amendment that would allow clutchless transmissions in STOCK. Therefore the 2010 NHRA rulebook still stands as printed.

STOCK: Clutchless transmissions prohibited.

Travis

(Disclaimer: Opinions expressed and threads started by me on this forum are exactly that, my opinions and threads.)

Tony Janes · 02-08-2010, 06:10 PM

I feel that rules that apply to super stock for transmissions and rear ends should apply in stock.

resurrection3 · 02-08-2010, 08:00 PM

travis,i hope your correct,but i don't

see it posted on nhra!

David Ley · 02-08-2010, 08:20 PM

Rich , I just forwarded you the link from the NHRA Website.

71mavlouisville · 02-08-2010, 11:02 PM

Yeeeeee Hawwwww! From someone that drives one this is a great decision. This may encourage more standards in the class. The only problem I see is driving through the pits, unless you have a lenco. Are there any restrictions on type, i.e. g-force, liberty, jerico, lenco etc? Are all allowed? Thank you NHRA!!!!!!

Jeff Lee · 02-09-2010, 12:51 AM

SECTION 10 – SUPERSTOCK
Page 10.5
Section 10A – Super Stock
DRIVETRAIN: 2
TRANSMISSION, Manual (2/8/10)
OEM or NHRA-accepted aftermarket transmissions having same number of forward
speeds (O.D. gear not required) as original, and reverse, may be used. All gear changes
must result from direct action by the driver. Pneumatic, hydraulic, electric, etc. shifters
prohibited. Floor shift-conversion kits permitted. Clutchless transmissions permitted.
If any engine/manual transmission combination is listed in the class blueprint specification as
being available with only a three-speed manual transmission, it may be replaced with
any four-speed manual transmission. See General Regulations 2:12.

Note: I deleted the "red lined" language as this does not show on a cut / paste.
Here is the direct language (see page 16):
http://www.nhra.com/UserFiles/file/2...Amendments.pdf

bubski · 02-09-2010, 05:31 PM

do planetary trans get soft auto index?

Nitro Joe Jackson · 02-10-2010, 10:17 AM

I thought this rule has been in affect for year, as I've watched a lot of stick cars (and I'm from a stick shift family) and the old story went you always seen the wheelie bars moving during each shift change, well i know of a bunch that did not have no movement. Bet there will be a bunch of AH cars becoming sticks.

acme383 · 02-10-2010, 11:22 AM

They were just really good at shifting...wink, wink!

IMO, i think it's a good equalizer to the autos. it was pretty SH!**Y how they went about it. why is there still a weight break for autos. get rid of that!

Mike Taylor 3601 · 02-10-2010, 01:04 PM

I've wondered something for awhile I've read that when P/S switched to Lenco's that Ronnie Sox slowed down when he went to Lenco,so is it possible Ronnie Sox was shifting without clutch when maybe hardly anyone else was or had even tried?I do know people shifted crash boxes and pro shifted trans without clutch. This is in no way intended to be a negative thing against Ronnie Sox he was excellent driver and true pioneer and evidently they had something figured out if they could go faster with clutch type trans over Lenco.Which I know Lenco has more drag than non planetary trans.but it's still impressive to go faster with factory style 4 speed than Lenco.
Again nothing against Ronnie Sox just trying to figure out and did any other drivers slow down when they changed to planetary trans?
Mike Taylor3601

02-08-2010, 05:35 PM	#1
Travis Miller Member Join Date: Jun 2007 Posts: 478 Likes: 1 Liked 276 Times in 27 Posts	Clutchless transmission permitted in S/S As of today's date 2/08/2010, posted in NHRA.com 2010 rule amendments, clutchless transmissions are permitted in S/S. This rule is in effect for the Winternationals. For those interested, there is NO rule amendment that would allow clutchless transmissions in STOCK. Therefore the 2010 NHRA rulebook still stands as printed. STOCK: Clutchless transmissions prohibited. Travis (Disclaimer: Opinions expressed and threads started by me on this forum are exactly that, my opinions and threads.)

02-08-2010, 06:10 PM	#2
Tony Janes Senior Member Join Date: Jan 2002 Location: Whittier, Ca Posts: 830 Likes: 86 Liked 3 Times in 3 Posts	Re: Clutchless transmission permitted in S/S I feel that rules that apply to super stock for transmissions and rear ends should apply in stock. __________________ Tony Janes 7941 STK, SS

02-08-2010, 08:00 PM	#3
resurrection3 Junior Member Join Date: Jul 2007 Posts: 62 Likes: 0 Liked 0 Times in 0 Posts	Re: Clutchless transmission permitted in S/S travis,i hope your correct,but i don't see it posted on nhra!

02-08-2010, 08:20 PM	#4
David Ley Member Join Date: Dec 2001 Location: South Jersey Posts: 123 Likes: 0 Liked 0 Times in 0 Posts	Re: Clutchless transmission permitted in S/S Rich , I just forwarded you the link from the NHRA Website. __________________ Dave Ley NHRA TECH

02-08-2010, 11:02 PM	#5
71mavlouisville Junior Member Join Date: Nov 2007 Posts: 68 Likes: 0 Liked 28 Times in 1 Post	Re: Clutchless transmission permitted in S/S Yeeeeee Hawwwww! From someone that drives one this is a great decision. This may encourage more standards in the class. The only problem I see is driving through the pits, unless you have a lenco. Are there any restrictions on type, i.e. g-force, liberty, jerico, lenco etc? Are all allowed? Thank you NHRA!!!!!!

02-09-2010, 12:51 AM	#6
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Clutchless transmission permitted in S/S SECTION 10 – SUPERSTOCK Page 10.5 Section 10A – Super Stock DRIVETRAIN: 2 TRANSMISSION, Manual (2/8/10) OEM or NHRA-accepted aftermarket transmissions having same number of forward speeds (O.D. gear not required) as original, and reverse, may be used. All gear changes must result from direct action by the driver. Pneumatic, hydraulic, electric, etc. shifters prohibited. Floor shift-conversion kits permitted. Clutchless transmissions permitted. If any engine/manual transmission combination is listed in the class blueprint specification as being available with only a three-speed manual transmission, it may be replaced with any four-speed manual transmission. See General Regulations 2:12. Note: I deleted the "red lined" language as this does not show on a cut / paste. Here is the direct language (see page 16): http://www.nhra.com/UserFiles/file/2...Amendments.pdf __________________ Jeff Lee 7494 D/S '70 AMX Last edited by Jeff Lee; 02-09-2010 at 12:55 AM.

02-09-2010, 05:31 PM	#7
bubski Member Join Date: Dec 2009 Posts: 228 Likes: 14 Liked 165 Times in 60 Posts	Re: Clutchless transmission permitted in S/S do planetary trans get soft auto index?

02-10-2010, 10:17 AM	#8
Nitro Joe Jackson VIP Member Join Date: Dec 2001 Location: Loudonville, Ohio or where ever the Nitro Lounge is parked Posts: 2,293 Likes: 57 Liked 67 Times in 19 Posts	Re: Clutchless transmission permitted in S/S I thought this rule has been in affect for year, as I've watched a lot of stick cars (and I'm from a stick shift family) and the old story went you always seen the wheelie bars moving during each shift change, well i know of a bunch that did not have no movement. Bet there will be a bunch of AH cars becoming sticks. __________________ Nitro Joe Jackson STK 3431 nitrojoe@neo.rr.com

02-10-2010, 11:22 AM	#9
acme383 Junior Member Join Date: Mar 2005 Location: chitown Posts: 55 Likes: 0 Liked 0 Times in 0 Posts	Re: Clutchless transmission permitted in S/S They were just really good at shifting...wink, wink! IMO, i think it's a good equalizer to the autos. it was pretty SH!**Y how they went about it. why is there still a weight break for autos. get rid of that!

02-10-2010, 01:04 PM	#10
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,369 Likes: 348 Liked 292 Times in 101 Posts	Re: Clutchless transmission permitted in S/S I've wondered something for awhile I've read that when P/S switched to Lenco's that Ronnie Sox slowed down when he went to Lenco,so is it possible Ronnie Sox was shifting without clutch when maybe hardly anyone else was or had even tried?I do know people shifted crash boxes and pro shifted trans without clutch. This is in no way intended to be a negative thing against Ronnie Sox he was excellent driver and true pioneer and evidently they had something figured out if they could go faster with clutch type trans over Lenco.Which I know Lenco has more drag than non planetary trans.but it's still impressive to go faster with factory style 4 speed than Lenco. Again nothing against Ronnie Sox just trying to figure out and did any other drivers slow down when they changed to planetary trans? Mike Taylor3601